Pull attachment for key-sockets.



P. GOLATZKY;

PULL ATTACHMENT FOR KEY SOCKETS.

APPLICATION FILED JULY 21. 1916.

1,238,401 Patented Aug. 28,1917.

anvemtoz Pzlzxa 4% K ail mm 1 PHILIP GOLATZKY, OF NEWARK, NEW JERSEY, TOKBICH, 0E

NEW K, NEW JEns Y,

PULL ATTACHMENT non xnr-socxnrs. I

Specificationof Letters Patent. pat' t 23, 19121 Application filed. July27, 1916, Serial No. 111,584.

To all whom it may concern:

Be it known that I, PHILIP Go A'rzKY, a subject of the Czar of Russia,residing at Newark, Essex county, and State of New Jersey, have inventedcertain-new and useful Improvements in Pull Attachments for Key-Sockets,of which the following isa full, clear, and exact description.

This invention relates to improvements in pull-devices forelectric-lightfixtures, the object being to provide a device that can beapplied to the key of a key-socket electric-light fixture so as totransform it into a pull-socket. It ofttimes occurs that keysocketfixtures are located in inaccessible places or positions, making itextremely awkward to turn the current on and off. My improved attachmentis designed to facilitate the manipulation of the switch or key on theseinaccessibly located sockets, although it is also well adapted forapplication to key-sockets generally, providing, as it does, a moreconvenient manipulation to turn the current on or ofi. WVhile myimproved socket is positive inits action, it is made up of but few partsand can be cheaply manufactured and readily applied.

I will now proceed to describe my invention in detail, the essentialfeatures of which will be summarized in the appended claims, referencebeing had to the accompanying drawing, forming part hereof; whereinFigure 1 is a side elevation of a keysocket fixture having my pulldevice at tached thereto; I

Fig. 2.is an enlarged sectional detail plan view of myimprovedattachment;

Fig. 3'is a side elevation of my improved attachment, certain partsbeing omitted, the locking ring being shown in section;

Fig. d is a vertical sectional view, the sectionbeing taken on a line Hin Fig. 2;

Fig. 5 is -a similar view, the section being taken on a line 55 in Fig.2;

Fig. 6 is a top edge view of the pawlplate;

Fig, 7; is an enlarged vertical sectional view, the section being takenon a line 77 in Fig. 2;

Fig. 8 is a sectional top plan view of a modified form of myimprovement;

Fig. 9-. is a diagrammatic faceview of the form shown in Fig. 8,illustrating the relationship between the pawl-plate and ratchetelements; and v Fig. 10-is atop plan View of. one form ofbracket-which Imay employ.

. Referring to the drawing, the numeral 11 indicatesasocket having a key12 acting as a switch, a portion of an electric-lightbulb beingindicated by 13. My improved pull-attachment, indicated generally bylet,

comprises a clamp 15 carried by a spindle 16-whiclrinturn is carriedby abracket 17 arranged for securement, to the socket 11. Any form ofbracketmay be used, the one illustrated:carrying a. clamp 18 to engagethe socket, a bolt 19 being employed to draw the members of the clampfirmly in contact with thesocket. To operate or rotate thepull-attachment, I emplov a ratchet-plate 21 and a pawl-plate 22carrying a handle 23. The ratchet-plate21 is provided with a series ofrecesses 24, one wall 25 of which is engaged, by. the pawls I 2'?carried; by the pawl-plate22. Thepawls 27 are provided by bending. outtongues formed in the plate, 22, said tongues being formed by cutting y,

slots 28 in said plate, as will be evident by an inspection ofthedrawing.

To secure theclamp 15 and ratchet-plate 21 to. the spindle 1.6, Iprovide the spindle 1.6 with a slot 29,, to f0rmhorns30,,and theratchet-plate 21, with openings 31, 31, through which the horns 3Qarepassed '(see Fig. 4) and through a central opening 32 in the clamp15.

After having passed the, horns through,

the openings 31 in the plate, 21 and opening 32 in the clamp 15, theyare bent upwardly and rearwardly against the clamp 15, as shown in Fig.2. By thev above de scribed method, I' am able to rotatably secure theclamp 15, ratchet-plate 21" and spindle 16 together.

The: pawl-plate 22 is rotatably mounted on the spindle16, but is keptpressed against the ratchet-plate 21 by a spring 33 one end of which issecured, t0 the bracket 17 (See Fig. 7), the other end being'secured tothe ratchet-plate 22. The spring 33 is arranged to exert pressureagainst. the pawlgplate 22 in one direction and against the head, of thespindle 16 in the oppositedirection. c

To allow the clamp 15 and spindle 16 to rotate in but one direction, I'provide a spring 34; which is tightly coiled around the spindle 16 (seeFig. 7 "One end of the will allow the spindle 16 to be rotated in onedirection, for instance the direction indicated by the arrow 35 in Fig.7 but will prevent the said spindle from being rotated in the oppositedirection, indicated by the arrow 36, as said spring will. tighten andgrip the said spindle should it tend to rotate in the direction of thearrow 36. When the spindle is rotated in the direction of the arrow 35,the spring 34 will expand. The spring 34 acts to grip and hold thespindle 16 against rotation during the return movement of the pawl-plate22 after having been operated to advance the ratchet-plate 21 one step.

To apply the attachment, the clamp 15 will be slipped over the key ofthe socket and the locking-ring 37 moved along said socket to firmlycause same to grip the key 12. To turn the current on or off, the key 12will be rotated in one direction only, not forward and then backward.Although the lever 23 and its pawl-plate will have a reciprocatingmotion, the movement imparted to the ratchet-plate and clamp will beintermittently rotatable. It will be apparent that the pawls 27 willengage the walls 25 of the recesses 24, as soon as they aline therewith,the spring 33 acting to cause said engagement. When the pawl-plate isreturned, after having actuated the ratchet-plate and clamp, theratchets 27 will jump out of their recesses 24, slightly compressing thespring 33, but will be forced into the recesses again as soon asalinement takes place.

In the form of device illustrated in Figs. 8 and 9, the spindle 37consists of a cotterpin which is passed through the central opening 38in the pawl-plate 22 and central opening 32 in the clamp 15. Afterhaving been passed through the clamp 15, the ends of the members 39 and40 of the cotter-pin are bent outwardly, then over the edge of theclamp, and then inwardly as shown in Fig. 8. The inwardly turned outerends 41 of the cotter-pin members 39 and 40 constitute ratchet-memberswhich are engaged by the pawls 27.

The spindle or cotter 37 is carried by a bracket consisting of a pliablewire 46 twisted around said cotter, as at 42. The end 43 of the brackethas secured thereto the spring 44 which performs the same function asthe spring 34. A spring 45 in this latter form performs the samefunction as the spring 33 in the form illustrated in Fig. 2. The bracketor wire 46 is sufficiently pliable to be twisted around the socket toform a support.

Having now described my invention, what I claim and desire to secure byLetters Patent is:

1. A clamp provided with a central opening, a rotatable spindle thereforpassing through said opening provided with a slot longitudinally thereofto provide horns, a ratchet-plate provided with a plurality of openingsto receive said horns, said horns being bent outwardly and forcedagainst said clamp, a plate rotatably mounted on said spindle, and pawlscarried by said plate to engage said ratchet-plate.

2. In a pull attachment for lamp sockets, a support arranged forattachment to the socket, a rotatable spindle carried thereby, a ratchetdevice rotatably secured to said spindle, a pawl device carried by saidspindle to operate said ratchet device, means carried by the spindle toengage the switch mechanism of the socket, a gripping device to hold thespindle against rotation in one direction.

3. In a pull attachment for lamp sockets, a support arranged forattachment to the socket, a rotatable spindle carried thereby, a ratchetdevice rotatably secured to said spindle, a pawl device carried by saidspindle to operate said ratchet device, a spring to keep said ratchetdevice and pawl device in engagement and means carried by the spindle toengage the switch mechanism of the socket, a gripping device to hold thespindle against rotation in one direction.

4. In a pull attachment for key-sockets, a support arranged forattachment to said socket, a spindle rotatably supported thereby, aspring tightly coiled around said spindle, one end of said spring beingsecured to said support, the other end of said spring being unsecured,said spring being arranged to grip and holdsaid spindle when saidspindle is rotated in one direction but to permit said spindle. tofreely rotate when operated in the opposite direction, means to rotatesaid spindle, and means carried by the spindle to engage the key of thesocket.

5. In a pull attachment, a rotatable spindle, means to impart to said.spindle an intermittent rotary movement in one direction, and a springcoiled around said spindle and in contact therewith, arranged togripsaid spindle and prevent the rotation thereof while the rotating devicefor said spindle is returning to its normal position.

Signed at New York city, N. Y. this 26 day of July, 1916.

PHILIP GOLATZKY. Witnesses:

EDWARD A. J ARVIS, MAURICE BLOCH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

